Stripper bar mounting



Feb. 28, 1933. E. wmm

STRIPPER BAR MOUNTING 3 shoetsasheet 1 Filed April 8, 1932 Feb; 28', 1933.

L. E. WIRTH STRIPPBR BAR MOUNTING Filed A ril 8, 19:52

3 Sheets-Sheet 2 INVENTOR Feb. 28, 1933. L, E. wimn 1,899,405

STRIPPER BAR MOUNTING Filed April 8, 1932 3 Sheets-Sheet 3 INVEDIJTOR oZLw/JM x 444; 1 MM Patented 1 617228; 1933f V Lou s E. wm'rnror 'rnrrsisundri,rnNNsYLvAmmAssIGNoRTo A BER Mil" -HANAUEVR,,.OFPITTSBURGH; PENNSYLVANIAm s'rmrrnm IQAR J mo'unrme- Application filedf April 18,

This invention relates to a stripper bar mounting in a cotton h'arVestingmach ne such asthat dlsc-losed-in my oo-pending ep- I In such a machine as;that;disclosed :inmy above noted application cotton'ispi'eked from v I "all tinieswith the vertical rows 'ofpi king Y the plants by means "ofa iplurality 10f ipic king needles carried by a reyoluhlezvcylinder, which by suitahlejdriving'connection is ro-' tateda'bout a stationary shaft).- Y This shaft is suspended from the frameo f the'machin'e.

.The'needles themselves arecarried with the eylinderduring its. revolution,i"and"are rotated aliout their owniaxes to wind fibers of,

moved outwardly along the needleslt'o push the cotton thereon to appointatthe end of the needles where it maybe readilyrem'oved,

as by astiili' revolving-brush; "These stripper bars move inwardly and outwardly, of the needleshy contact with cam tracks defining a path designed to produce :the inward-and outward'stripper bar movement in proper an? I gular positionshofthe needle carrying cylinder or frame throughout each periodof revo- 9 .lutio'n.

bly comprising the isupporting shaft," there foluhle carrying cylinder, the,;picking-;needles fwhich in practice is non-rotatahly'mounted 7 .7

on the iframeof a cotton harvesting machine, n 5

"Allthe elements of the picking a'ssemblyare andassocia'tedmeans may be wholly self con of the stripper bars solely uponotherielei- .ments of the assernbly, and so form and arrange these cam tracks "andrtheir supporting}; means, that the upper and lower "cam tracks are rigid, and are in exact alignment with eachother.

wardly and outwardlyzunder the influence of their contact with the :cam tracks, and.

: 'serVe to protect the pi'ckingq needles from In order "that each picking nedle' assemtained I mount the cam tracksjforguidance" 1932:" Serial 1%. comes. j

angular forces resulting from inci ement of I the stripper bars; As, a-further feature pf my: invention, I mountethese stripper 'bar a plication Serial No, 454,255, filed :May 21,,

guide fingers :inthe same; wall of the carry barguidefgfingers assures; theiralignment at 5 needles with whichtlie-figuide fingers are as sociat'ed, preserving an- 7 accurate correlation "J of; the guide fingers withthe picking needles T lndepjendentlyofthealignment of any other element-of the assembly.- I

j,InJtheiaccompanyingjdrawings FigureJI J I 'i is a view, partly in vertical seetionand partly 5 5 cotton about the needles. Q'D'uringfa certain period in thejrevolution of the cylindersyro-c Z tation of the needles is temporarilydisconee, tinued, and in that period-stripper bars are inrelevation, of a picking needle, carrier as sembly," showing the needlercarrying;cyline I trackmountings, but omitting for simplicity 9 the driving connections for the'cylinder and ,for the needles; Figure'II is a plan 'viewot the {upper camv track ,mounting and cam track Figure III is aflv erticalsectional View through the upper cam track mounting and' cam track taken on the irregular section line I III-IIIofFigure II; Figure IV is'falplan rview of'the lower cam track mounting and foam r te igure V is [a- Vertical seetionall vlew taken on'the irreguh Sect- .180

' line V".:Vof Figure IV; I c g i In the accom-panylng drawings reference numeral 1 1 designates" a "suspending ,shaft,

wholly supported by this non-rotatable shaft 1, ;.-Revolubly mounted on shafteI-is a-cylinde'r 2 having a yerticalwall2a." Above'the cylinder 12, and 'no'n' -rotatably mounted with= q i respect to shaftl, is a housing 3 which comprises :ho'u'sing'elements 3a, 3b; and 30'; This -housingiservesto contain andprotectmeans a for, transmitting power to the cylinder for] revolvingit'about shaft :1, and for rotating 95 the "picking, needlesof theassemloly about their own axes. Theform and arrangement 1 0f theselactuating connections areshown and described in my co-fpen'ding application Se The picking needles at of the assembly are mounted in the vertical wall 2a of carrying cylinder 2, and project outwardly therefrom. These needles 4; are arranged in vertical rows, and a stripper bar '5 is associated with each vertical row of needles. The needles ,4 pro-' ject through. the stripper bar, being desirably surrounded at the stripper bar byiloosely mounted sleeves,suchas those shown and described inmy co-pending application Serial No. 595,535, filed February 27,1932;

As described generally above, during the picking of cotton, cylinder 2 is revolved by suitable actuating connections about nonrevolub'le shaft 1 as an axis of rotation. By

suitable operating connections each individual row acts as a unlt, all the needles of a particular row beingsimultaneously rotated throughout a predetermined number of degrees of cylinder movement during each com plete revolution of the cylinder. During rotation of the needlefs'ki of each vertical row, the stripper bar 5 associated with that'row lies adjacent the-base of the needles in such position that it does not interfere with the gathering ofcotton by the needles. In timed" relation to the completion of the gathering of cotton by the needles, and when the picking rotation'of; the needles is terminated, the

" needles if is moved outwardly alon the nee V tional' forces producedby inward and outward movement of the stripper bar.

My present invention relates particularly to the means for producing inward and outward movement of the strlpperbars associated'with the several rows of needles, and of the stripper bar guide with the mounting fingers. Inward'andoutward movement of. the stripper bars is caused by cam tracks as in my co-pending application-SerialNo. 454,- I

255, and the patent to Hiram N. Berry No. 1,747,566, dated February 18th, 1930; Stripper bar guide fingers associated with each vertical row of needles are'shown and described not; only in my said co-pending ap;

' plicatio-ns but also in the Berry Patent N 0.

1,747,566.; My invention, therefore; resides in the mounting of the picking cylinder generally, and specifically in the mounting of the stripper bar guide fingers and in the structure and mounting of the cam tracks producing operative movement of. the stripper bars.

By reference to Figural of thedraw ings, it will be noted that the upper cam track 7 is carried bythe stationary housing p element 3a, andthat the lower cam track 8 r l is carried by aplate' 9, which lies below cylported by the'shaftl.

inder 2,.and is wholly and immovably supinner and outer track elements.

track strip 7 Z1 stripper bar 5 associated" with the row of With particular reference to Figures II and III of thedrawings, it will be noted that the housing element 3a which carries the upper cam track 7 is a single integral casting. This housing element and cam track support 3a is wholly supported from shaft 1 by its rigid connection with the other housing elements3b and 3c. The cam track ,7 is formed of two metallic strips 7a and7b, which form The inner track strip 7a is attached to the skirt 10 of support So and the outer track strip 75 is carried by the skirt 11 of the support. It will be seen by reference to Figure II of the drawings that the continuous track formed by these strips- 7a and 7?) follows a circular path on the support 3a throughout an angular distance of more than 180 degrees.

The casting is extended outwardly in the region 365 to'provide for an irregular positioning ofthe cam trackto act on the stripper bar-5 of the assembly. The inner track element 7 a extends froma point 12 to a point l3adjacent the'peak of extension 361. Slight ly overlappingboth ends ofthe inner track strip 7a is the outer track strip 7 b, the inner track strip being omitted throughout the greater proportion of the extent of the outer The plate 9 which carries lower cam track -8 has a-central opening 14. and flange 15 for attachment to shaft .1. -ure V of the drawings, it will be seen that the By reference to FigplaIte-9 has thereon an upstanding flange 16a, carrying the inner track strip or section 8a,

and upstanding lugs 16?) carrying the outer track strip 86. The contour of the plate 9 in plan, in so far as the formation of the trackcarrying flanges is concerned, is identical with the contour of the upper cam track support*3a,*and in the assembly these two supports are mounted. in exact alignment with each other.

- In operation of the picking assembly, with the needle-carrying cylinder 2 revolving in a clockwise direction, each of the stripper bars is carried around with the cylinder by the stripper b'ar guide fingers 6. Each stripper bar has adjacent its ends rollers 19 and 20 which .are 'in contact respectively with the upper cam track 7 and the lower cam track 8. Duringrevolution of the-needle-carrying cylinder 2 throughythe angular distance in which the cam tracks follow a semi-circular Ipath, astripper bar following that path lies inwardly adjaeent the'base of the needles with which it is associated. This defines the period in which the needles are in picking condition; 1 r

A continuation of the single revolution of the lower cam tracksupport, with the rollers still inicontact with the inner track strips i the needle carrier and constitutinganiupper 7aand 8a of the, twotracks. I This movement i I "mounted inthe wall of said cylinder to pro- I along the needles until the peak ofthe trackst forces the stripper bars gradually outward is reached; Shortly 'beforethe rollers'reach 5 the peak of the tracks, they enter within the outer track strips .77 b and 8b, and'afterthe peak has been passed the continued revolu-* tion of the needle-carrying. cylinder brings c the stripper bars inwardly to a point at which the needles are operativelypexposed; The outer track strips fo'rce'this inward movement.

, .per bar guide fingers to be out ofli'ne with the pressure on the needles. a 3 v As reviously emphasized, both the cam tracks are carried wholly by the non-revolumits a picking assembly to be adjusted in the.

justment of its several elementssf The cam track supports are rigid structure's,1rigidly connected to the shaft. The possibility of the two cam tracks Working ,out of mutual alignmentis therefore minimized.

I claim as my invention: 1 1

It will be noted thateach ofthe stripper bar guide fingers is mounteddirectly in;the wall 2a of cylinder 2, inline with avertical row of picking needles; For this-reason any accidental displacementof'an element of; the picking assembly cannot cause thestrip "respectively by ports in vertical alignment with each other,

picking needles, and the stripper .bars'may picking needles'mounted 'in the-wall of said 6 7 move inwardly andoutwa'rdly under the in; fluence of the. "cam tracksiwithout exerting v ble shaft of the assembly, and are without connection-to anyothervpart ofuthe machine, to which the assembly ismounted. This per machine as a whole and without inutualadwhich that'guidefinger is'in line. I we r In testimony whereof I have hereunto set;

, LoUisn-WIRTH. I" -;10,0;,M,,

der-revoluble on said shaft,'picking,need1es-;

"ect in vertical rows therefrom, stripperff tical row project, and str pper bar guide;

fingers mounted directly in'the wall-ofthe, cylinder in line witheach vertical row of a V needles and projecting each through the. I stripper bar associated with the row.of"

needlesywith which thatguide finger-is in line;

In apicking assemblyforuse inacotton harvestingmachine the combinationqof av I non-revoluble shaft, a needle-carrying 'cylinq der revoluble on said shaft, a lower cam track -r 9 support carried wholly'byfsaid shaft, an ups per cam track support carried wholly by said 7 7 I shaft, lower and upperw cam tracks carried said lower and upper sup. '8;

from, a stripper bar associated with the row of needles with my hand.

a 1. In a picking assembly'for s in a cot 7 ton harvesting machine, the combination of a non-revoluble shaft,fa needle carrier revoluble on said shaft, a lower cam tracksupport carried wholly byy'said shaft, an upper cam track support carried'wholly-bylsaid;

shaft, lower and uppercam tracks'carried respectively by said lower and rupper, sup-- ports in vertical alignment eachhother, W i and stripper bars mounted to move angularly a p bar. operatively. contacting both cam tracks associated with each Ivertia F cal row of needles and through which the ,needlesprOjecQE-and stripperbar guide fin-a 1 gers mounted directly in the wall of the=cyl--, inder in linewith each vertical row of neea dles andprojecting'eachthrough the stripper "9'51,

with the needle carrier and operatively con- I v tactingbothcam tracks. 7

7 2. In apicking assembly foruse in acot- I ton harvesting mach1ne,"the combinat on 1. of a non-revoluble shaft, a needleearrler revoluble on said shaft, a plate structure carried wholly by said shaftbelow the needlecarrier and constituting a lower cam-track support, a housing carried wholly by said shaft" above cam track support,'1ower' andupper cam tracks carried respectivelyby said lower and upper supports 1n] vertical alignment with move angularly with g V operatively 'contacting bothcam, tracks;

each I other, and stripper bars "mounted to--' the needle carrier and V 3. In a picking assembly for use in acotton; 

